In Vitro Colonization of Micropropagated Pieris floribunda by Ericoid Mycorrhizae. I. Establishment of Mycorrhizae on Microshoots

Starrett, Mark C.; Blazich, Frank A.; Shafer, Steven R.; Grand, L. F.

doi:10.21273/hortsci.36.2.353

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…Plant growth and root architecture were not substantially altered by this inoculation method (Table 1), although the occasional inhibition of rooting initiation may merit further investigation. Previous methods for inoculation of plants with ERM fungi have focused on solid media (Pearson & Read, 1 973; Stribley & Read, 1 976; Starrett et al ., 2001). Our inoculation method forced roots to grow directly through fungal inoculum, and produced similar colonization rates to the method of Stribley & Read (1976) (71% under low‐N conditions), which was designed with the same end in mind.…”

Section: Discussionmentioning

confidence: 99%

Inoculation of cranberry (Vaccinium macrocarpon) with the ericoid mycorrhizal fungus Rhizoscyphus ericae increases nitrate influx

2007

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Summary• Despite the ubiquitous presence of ericoid mycorrhizal (ERM) fungi in cranberry ( Vaccinium macrocarpon ), no prior studies have examined the effect of ERM colonization on influx kinetics. • Here, influx was measured in nonmycorrhizal and mycorrhizal cranberry in hydroponics. Mycorrhizal cranberry were inoculated with the ERM fungus Rhizoscyphus (syn. Hymenoscyphus ) ericae .influx by R. ericae in solution culture was also measured.• Rhizoscyphus ericae influx kinetics were linear when mycelium was exposed for 24 h to 3.8 m M, and saturable when pretreated with 3.8 m M , 50 µ M , or 50 µ M . Both low-N pretreatments induced greater influx than either of the high-N pretreatments. Nonmycorrhizal cranberry exhibited linear influx kinetics. By contrast, mycorrhizal cranberry had saturable influx kinetics, with c . eightfold greater influx than nonmycorrhizal cranberry at concentrations from 20 µ M to 2 m M . There was no influence of pretreatments on cranberry influx kinetics, regardless of mycorrhizal status.• Inoculation with R. ericae increased the capacity of cranberry to utilize -N. This finding is significant both for understanding the potential nutrient niche breadth of cranberry and for management of cultivated cranberry when irrigation water sources contain nitrate.

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Section: Discussionmentioning

confidence: 99%

Inoculation of cranberry (Vaccinium macrocarpon) with the ericoid mycorrhizal fungus Rhizoscyphus ericae increases nitrate influx

2007

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“…Previous studies of ericoid mycorrhizae have produced varied growth responses in host plants (Bonfante-Fasolo et al, 1984;Bra d ley et al, 1981;Currah et al, 1993;Leake and Read, 1991;Powell and Bates, 1981;Read, 1995;Reich et al, 1982;Singh, 1974;Starrett, et al, 2001;Stribley et al, 1975). These inconsistent results may have resulted from the diverse sources of ericoid mycorrhizae utilized in each study.…”

Section: Methodsmentioning

confidence: 98%

Host Range of a Select Isolate of the Ericoid Mycorrhizal Fungus Hymenoscyphus ericae

Gorman¹,

Starrett²

2003

HortSci

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Studies were conducted to examine the host range of a select isolate of the ericoid mycorrhizal fungus Hymenoscyphus ericae (Read) Korf and Kernan [American Type Culture Collection (ATCC) #32985]. Host status was tested for 15 ericaceous species, including: Calluna vulgaris (L.) Hull, Enkianthus campanulatus (Miq.) Nichols, Gaultheria procumbens L., Kalmia latifolia L., Leucothoe fontanesiana Sleum., Oxydendrum arboreum (L.) DC.,Pierisfloribunda (Pursh) Benth. & Hook.,Rhododendron calendulaceum (Michx.) Torr.,Rhododendron carolinianum Rehd., Rhododendron catawbiense Michx., Rhododendron maximum L., Rhododendron mucronulatumTurcz., Vaccinium corymbosum L., and Vaccinium macrocarpon Ait. Arbutus unedo L., an ericaceous species that forms arbutoid, not ericoid, mycorrhizae, was used as a negative control. All of the species were colonized by the ericoid isolate with the exception of Enkianthus campanulatus and the negative control. Inoculation with this isolate of H. ericae resulted in a significant increase in shoot growth. However, intensity of root colonization was not correlated to amount of shoot growth. In fact, an increase in growth was observed in the two species that lacked fungal colonization.

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Oidiodendron maius: Saprobe in Sphagnum Peat, Mutualist in Ericaceous Roots?

Rice

Currah

Soil Biology

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In Vitro Colonization of Micropropagated Pieris floribunda by Ericoid Mycorrhizae. I. Establishment of Mycorrhizae on Microshoots

Cited by 5 publications

References 26 publications

Inoculation of cranberry (Vaccinium macrocarpon) with the ericoid mycorrhizal fungus Rhizoscyphus ericae increases nitrate influx

Inoculation of cranberry (Vaccinium macrocarpon) with the ericoid mycorrhizal fungus Rhizoscyphus ericae increases nitrate influx

Host Range of a Select Isolate of the Ericoid Mycorrhizal Fungus Hymenoscyphus ericae

Oidiodendron maius: Saprobe in Sphagnum Peat, Mutualist in Ericaceous Roots?

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